Car-truck



(No Model.) 2 Sheets-Sheet 1.

J. C. BARBER.

GAR TRUCK.

No. 573,636. v I Patented Dec. 22, 1896.

Maw amgw' W (No Model.) 2 Sheets-Sheet 2. J. C. BARBER.

GAR TRUCK.

Patented Dec. 22, 1896.

m 40 w m V W. J

7b72n c. BarZer UNITED STATES PATENT OFFICE.

JOHN C. BARBER, OF ST. PAUL, MINNESOTA.

CAR TRuCK.

SPECIFICATION forming part of Letters Patent No. 573,636, dated December22, 1896.

Application filed April 29, 1896,

To all whom/it may concern.-

Be it known that I, JOHN C. BARBER, a citizen of the United States,residing at St. Paul, in the county of Ramsey and State of Minnesota,have invented certain new and useful Improvements in Oar-Trucks; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to'which it appertains to make and use the same.

My invention relates to that class of cartrucks wherein thetruck-bolster is mounted with freedom for vertical and lateral motion,and has for its object to improve the construction with a view ofincreased economy and efficiency. I

To these ends my invention comprises the novel devices and combinationsof devices hereinafter described, and defined 'in' the claims. 5

My invention is illustrated in the accompanying drawingsavherein, likeletters referring to like parts throughout the several views- Figure lis a side elevation of my improved truck. Fig. 2 is a plan view of onehalf of the truck, the other half being broken away. Fig. 3 is avertical section, partly on the line 03 00 of Fig. 2 and partly in avertical plane, through the center of the truck-bolster and one of theside frames. Fig. 4 is a perspective view, with some parts broken away,showing one of the side frames and parts cooperating therewith. Fig. 5is a perspective View, with some parts broken away, showing one end ofthe truck-bolster with some parts removed and others broken away. Fig. 6is a detail in perspective, showing one of the bolster end caps orfilling-pieces removed. Fig. 7 is a detail in horizontal section, takenthrough a portion of the truck-bolster on the line x of Figs. 1 and 3.Fig. Sis a detail in plan. showing one of the movable plates which arecarried with thebolster in its lateral movement 5 and Fig. 9 is aview inhorizontal section corresponding to Fig. 7, but illustrating a slightmodification in the form of the guides for the movable bearing-plates.

For the purposes of this case the details of the side frames of thetruck are immaterial. The truck-frame may be of any suitableconstruction so long as the truck-bolster is mount- Serial No. 589,589.(No model.)

ed thereon with freedom for vertical and lateral'movement.

In the truck illustrated in the drawings, 0. represents the wheels; a,the axles; (L2, the journal-boxes; a the journal-box guides, and (t thetie-bolts, working through said guides a and the bars I) b b whichtogether constitute the side frames of the truck. Of the said side-framebars I) b b the upper member I) is of channel form and the other twomembers I) and b are plain bars, as best shown in Figsib and 4..

lhe transoms c are shown as of channelbar form and are riveted orotherwise secured to thebolster columns c. The said bolstercolumns a arealso composed of channel-bars and are rigidly secured by gussets o tosaddle-platesc of channel form, which rest upon the side-frame bars I)and b Column-bolts c extend through all the parts I) b b and c c c forrigidly securing the same together, relative to each other, in theirproper working positions. The said transoms c, bolstercolumn 0, andsaddle-plate c are conveniently made from channel-bars of the same size,with the inner flanges of the column 0 cut away to permit the transomsto be seated against the bolster columns. The saddleplates 0 are'cutaway or notched at their ends to aiford the necessary clearance for theinclined parts of the truss-bars b.

Onthe saddle-plates 0 rest channel-bar roller-bearing plates f, whichare of the proper size to fit against the bolster-columns c, with theirflanges engaging over the flanges of the said saddle-plates 0 In thisway the said bearing-plates f are held in a fixed position.Roller-bearings f rest in concave seats extending longitudinally of thesaid fixed bearing-plates f. On the said rollers f 'are mounted movableplates f which have on their under surface concave seats engaging withthe rollers f and have on their upper surface springseats f Springs frest on the said plates f and on the said springs rest shimming-blocks fwhich support the bolster. The said bolster is composed, as shown, ofchannel-bars g,'connected by the center plate g, end cross-ties g and gand end caps g, which fit between the ends of the channel-bars and thetie-bars g and are riveted or otherwise rigidly secured thereto, asshown in Figs. 1, 2, 3, and 7. The channel-bars g, of which the bolsteris made, are preferably set with their flanges facing inward or towardeach other, and near the outer ends of the bolster the lower flanges ofthe said channel-bars g are cut away, as best shown in Figs. 3, 5, and7, so as to afford clearance for the vertical movement of thebearing-plates f and the bolster relative to each other. As shown inFigs. 1 to 8, inclusive, the said movable bearing-plates f are providedwith notches f and the bolster channel-bars g are provided with verticalguides g cooperating with the said notches f to carry the said plates fwith the bolster in its lateral movement, while permitting the bol sterto move up and down in respect to said p ates- I th 'modifiea ion shownin F g- 9 the substi u movable hearing=p etes h are repre= sen ed as coper t ng with ve tieal guides of angle iron form, ri t d or otherwise. scure to h bolster ehannel be g an em gaging w th he eo ne of the saiplates It must e o ious th t the sai movable p ates f 2 migh be held andgui ed in espe t to the bolster in any other suitable way.

The sh mming b ook f a e s own tie o he olster y nu te bolts f, passingrough he said blocks an the ti a s g of. he said olster The saidslimming-blocks f ar also repr sente as provided with plates f on theirunder ur ace for resting on. he pr ngs f, an th m vable bearing-platesJ" are represen ed a ied to the s immihs locks 5 by eentra bolts f", arrec y the plates and working t ough the plates f th th ir heads o a le ient al s ot f formed in the blocks f as best shown in,

Fig. 3.

W h he on rneti n above described the movable pla es f the springs. fand the 11imm e= ke f are carried, i h the olster in its lateralmovement, while at the same time the said parts serve to support thebolster from the truck-frame with freedom r e t ea mov ment on t e sp inf In is v t ca vement of the bolster the mova e b arins p e f estconstantly n the r ll eb ar ng f, with the gui es g of the lster engag gthe n eh f or other equiv alent sh eees of the said. plates f Hence perectedo s a f rded for the spri g acon of t e bolete I virtue of the factthat he mo ab e ea iheplat s f and the springs. f are ear i d w th thebo s er in its lateral mov ment, a abo e' descri e it must be obvioushat he tors onal s ain on the springs f is avoided. Otherwise stated,the springs J" occupy a eon teh position in the rtica plane i e pect toth holster and he p ate f on which th pr n rest, The ar and tearef thesprings is therefore very eat y r duc d, as oompared. with the eon=uetiohs hi herto used und the lateral mo o Th s improv ment in thespring action is obtained without detracting in the least from thefreedom of the bolster for lateral movement on its, roller-bearing. Thesaid roller-bearingsf and their cooperating bearing-plates f f are by mypresent invention set in a somewhat difierent relation to thebolster-supporting springs, but in respect to the lateral motion of thebolster serve substantially the same function as where shown in myseveral prior patents, Nos. 370,758, 383,688, 433,063, 506,460, and528,844. In none of my prior patents, however, were any of thebearing-plates mounted so as to permit vertical movement of thebearing-plates in respect to the bolster.

I believe that I am the first to provide any kind of constructionwhereby the bolster-supporting springs are carried with the bolster init lateral movements, while at the same ime having their bases of:resistance on the trnektframe or supp rting the bolster with eedom forspring-cushioned vertical movemeet, and I desire herein to claim. thesame in the broadest possible way as a pioneer inventionhe shimn hgblocks f 5 a e pr ra made o ood, but may be of any suitable mater al,and serve to a ford a ready means fo adjusting the holster and thecarbody to i ferent h ghts by simply inserting subet tuteshimming-blocks of the desired thickness.

The bols er may be regarded as provided near its en s ith pockets forreceiving he springs, shirnming-bloeks, and the movable members of thebearing-plates.

It will be understood, of course, that the detai s of the construction mgh be a ed in many ways without departing from the spirit of myinvention.

It should be further noted that the concave form of the roller-bearingseats insures the centering of the bolster in its normal position.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is as follows:

1, The combination with a truck-frame, of a bolster mounted for bothvertical and lateral movements on the same, as a base of re.- sistance,base-plates carried by and fixed against lateral movement with respectto said bolster, but free for vertical movement thereon, and springsbetween said base-plates and said bolster, substantially as described.

The combination with a truck=frame and it bolster mounted thereon withfreedom for lateral and vertical movements, of fixed roller-bearingplates on the truck fra ne, rollers on said fixed plates, movablebearingplates on said rollers, and bolster-supporting springs on saidmovable plates, with said mov able plates and said springs carried withthe bolster, in its lateral movement, but permit ting vertical movementof the bolster, in respe'ct to the plates, substantially as de scribed.

33. The combination with a truck frame, of a truck-bolster, providedwith pockets near its ends, roller-bearing plates fixed to the frame,rollers on said fixed plates, movable bearing-plates on said rollers,bolster-sup porting springs on said movable plates, and vertical guides,in the pockets of said bolster, engaging with said movable plates,whereby the movable plates and the springs are carried with the bolster,in its lateral movement, while permitting the vertical movement of thebolster, in respect to said plates, substantially as described.

4. In a car-truck, the combination with the side frames, of the fixedbearing-plates f, the roller-bearin gs f the movable bearing-plates fthe springs f", the shimming-blocks f and a bolster provided withpockets, for receiving said parts f and f and provided with guidescooperating with the plates f substantially as and for the purpose setforth.

5. A oar-truck bolster, composed of the channel-bars g, cross-ties g gand end caps or filling-pieces g and having pockets in its ends equippedwith vertical guides, in combination with the fixed bearing-plates f,the rollers f, the bearing-plates f, the springs f", and theshimming-blocks f all arranged, for cooperation, substantially asdescribed.

6. The combination with the bolster-columns c and the saddle-plates c ofthe gussets 0 binding said parts together and reinforcing the same, saidparts being formed of separate pieces and united by rivets substantiallyas described.

In testimony whereof I afiix my signature in presence of two witnesses.

JOHN C. BARBER.

Witn esses J AS. F. WILLIAMsON, E. F. ELMORE.

